From c86821aa49312abab5c6f9b7941c038797b6c9a5 Mon Sep 17 00:00:00 2001 From: Bruno Haible Date: Fri, 5 May 2023 12:07:22 +0200 Subject: dirfd: Add tests. * tests/test-dirfd.c: New file. * modules/dirfd-tests: New file. --- tests/test-dirfd.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 tests/test-dirfd.c (limited to 'tests') diff --git a/tests/test-dirfd.c b/tests/test-dirfd.c new file mode 100644 index 0000000000..f7fd395a9c --- /dev/null +++ b/tests/test-dirfd.c @@ -0,0 +1,47 @@ +/* Test of dirfd() function. + Copyright (C) 2023 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +/* Written by Bruno Haible , 2023. */ + +#include + +#include + +#include + +#include "macros.h" + +int +main () +{ +#if defined _WIN32 && !defined __CYGWIN__ + fprintf (stderr, "Skipping test: The DIR type does not contain a file descriptor.\n"); + return 77; +#else + /* On all other platforms, we expect to have either + - a dirfd() function, or + - a dirfd macro, or + - a DIR struct with a d_fd member, or + - a DIR struct with a dd_fd member. + If we don't have this, dirfd.c produces a function that always returns -1. + Check here that this does not happen. */ + DIR *d = opendir ("."); + int fd = dirfd (d); + ASSERT (fd >= 0); + + return 0; +#endif +} -- cgit v1.2.1